In this paper one family (Hahniidae), seven genera (Cyrtophora, Hahnia, Lachesana, Megamyrmaekion, Meta, Nita and Zodarion) and 30 species are recorded for the fauna of Iran for the first time, of which 17 species are provided with digital taxonomic illustrations. Previous Iranian records of Euryopis flavomaculata (C. L. Koch 1836) and Evippa caucasica Marusik, Guseinov & Koponen 2003 are attributed to Eu. sexalbomaculata (Lucas 1846) and Ev. onager Simon 1895, respectively, and the hitherto questionable presence of Enoplognatha iraqi Najim, Al-Hadlak & Seyyar 2015 in this country is confirmed. In addition, new provincial records are provided for 46 species. As a result of this paper, the number of spider species known from Iran is raised to 647. On the basis of the comparison between our specimen and the available illustrations in the literature, the previous records of Gnaphosa rufula (L. Koch 1866) from Israel and Lebanon are attributed to G. bithynica Kulczynski 1903, which is a new record for both territories. Lastly, Ev. sector Alderweireldt & Jocqué 2017, recently described from UAE, is newly synonymized with Ev. fortis Roewer 1955, and the male holotype of the latter is illustrated (which is also a new species record for UAE).
Taxonomic accounts of two species belonging to the subfamily Coelotinae from Japan are reviewed. Iwogumoa portus Nishikawa 2009 originally described from Osaka, Japan and Coelotes plancyi Simon 1880 described from Beijing, China are considered to be conspecific. Therefore the former is synonymized with the latter, and C. plancyi is transferred to the genus Iwogumoa Kishida 1955. Coelotes inabaensis Arita 1974 described from Tottori, Japan is placed under the genus Dichodactylus Okumura 2017.
The male of Drassyllus amamiensis Kamura 2011 is described for the first time on the basis of specimens newly collected from Amami-oshima Island and two islands of Tokara Islands (new records), Kagoshima Prefecture, Japan. This species is distinguished from D. biglobus Paik 1986 known from Korea and Maritime Province of Russia by having terminal apophysis clearly longer, and retrolateral tibial apophysis with dorsoapical part somewhat rounded.
The female of Idastrandia orientalis (Szombathy 1915) is described for the first time, with redescription of the holotype male. Female specimens collected from the type locality share the somatic morphology of the holotype male, especially in the presence of a serrated retrolateral tooth on the chelicerae. On the basis of coloration and external morphological similarities, we conclude that our female specimens are conspecific with Idastrandia orientalis.
The occurrence of Kishidaia conspicua (L. Koch 1866) in the Russian Far East is confirmed. This species name is shown to be a senior synonym of K. xinping Song, Zhu & Zhang 2004 syn. n. Two new combinations are established: Yunohamella serpatusa (Guan & Zhu 1993) comb. n. and Yunohamella palmgreni (Marusik & Tsellarius 1986) comb. n., both ex Theridion. Yunohamella serpatusa is shown to be a senior synonym of Theridion tigrae Esyunin & Efimik 1996 syn. n. The record of Yunohamella serpatusa from the Botchinski Reserve (Khabarovsk Province) lies at the easternmost limit of its range. Spiders from the Botchinski Reserve are reported for the first time.